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Preventing Electrostatic Discharge Damage
Electrostatic discharge (ESD) is a discharge of stored static electricity that can damage equipment
and impair electrical circuitry. It occurs when electronic components are improperly handled and can
result in complete or intermittent failures.
Following are guidelines for preventing ESD damage:
•
Before you open a chassis, ensure that power to the unit is turned off, but that the power cord is
connected to the wall receptacle. Having the power cord connected will ensure a ground path for
any ESD voltages.
•
Always use an ESD wrist strap or ankle strap and ensure that it makes good skin contact.
•
Connect the equipment end of the strap to an unpainted surface of the chassis frame or another
proper grounding point or surface. We recommend that you attach it to the inside bottom of the
chassis, or to the rear panel (inside or outside), without making contact with any connectors or
appliques.
•
Avoid contact between equipment and clothing. The wrist strap only protects the equipment from
ESD voltages on the body; ESD voltages on clothing can still cause damage.
•
Handle printed circuit cards and appliques by the edges only; avoid touching the components,
traces, or any connector pins.
•
Place a removed card component-side-up on an antistatic surface or in a static shielding bag. If
the component will be returned to the factory, immediately place it in a static shielding bag.
•
Do not remove the wrist strap until the installation is complete.
Caution For safety, periodically check the resistance value of the antistatic strap. The measurement
should be within the range of 1 and 10 Mohms.
Installation
The following sections describe the procedures for installing a CSC-MEC card and Ethernet
appliques. The CSC-MEC card is installed in the system card cage, which you access by removing
the access panel on the front of the chassis. To access the system card cage, it is not necessary to
disconnect cables from the rear of the chassis, or to remove the top cover of the chassis. Ethernet
appliques are installed on connector plates in the rear of the chassis; access to the rear of the chassis
requires removing the front panel and top cover from the chassis.
Before proceeding, ensure that your system and equipment meet the requirements listed in the
section "Installation Prerequisites," on page 7.
Installing the CSC-MEC Card
Install the CSC-MEC card in the predetermined ciscoBus slot in the system card cage. (For slot
priority requirements, refer to the section "Slot Priority," on page 11.) All network interface cards
have ejectors that lock into place when the card is seated in the card cage and allow the card to be
extracted easily from its slot. Handle the card as little as possible; try to limit contact to only the
ejector tabs and card edges. Install the CSC-MEC card as follows.
Caution To prevent ESD damage, be sure to follow the ESD-prevention procedures described in the
previous section. Failure to do so may cause intermittent or immediate equipment failure.
Installing the CSC-MEC and CSC-C2MEC Multiport Ethernet Controller Cards 17
Installation
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